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testo 440 - Hot wire kit (Ø 0.35")
0563 4400testo 440 - Hot wire kit (Ø 0.35")
0563 4400A measuring instrument for all climate-related parameters
Intuitive: clearly structured measurement menu for volume flow and determination of air velocity in ventilation ducts
Convenient: integrated telescope that can be extended to 0.85 m, with scaling, makes it easy to carry out measurements
Extendible with a wide range of probes
Analytical software for creating professional reports and measurement data management
Digital probes eliminate any additional measurement uncertainty of the measuring instrument
When you register your product, we will extend the regular manufacturer's warranty by one year. >> Register now and get a warranty extension.
This testo 440 kit is great for carrying out measurements in ventilation ducts. The testo 440 air velocity and IAQ measuring instrument and its hot wire probe (Ø 0.35") with temperature sensor can all be safely stored in the included case.SPECIAL OFFER:
Free VETO TPB4 Blackout Tool Bag with IAQ Purchase on the testo Web Shop through March 31, 2024
A measuring instrument for all climate-related parameters
Product registration
When you register your product, we will extend the regular manufacturer's warranty by one year.
- testo 440 air velocity and IAQ measuring instrument, 3 AA batteries, USB cable, and calibration protocol (0560 4401)
- Hot wire probe (Ø 0.35") with fixed cable (length 5.6'), including temperature sensor with telescope (extendable to 2.8') and calibration protocol (0635 1032)
- Basic case for testo 440 and 1 probe
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Temperature - NTC
| Measuring range | -40° to 302 °F / -40 to +150 °C |
|---|---|
| Accuracy | ±0.5 % of mv (Remaining Range) ±0.7 °F (167° to 211.8 °F) / ±0.4 °C (+75 to +99.9 °C) ±0.5 °F (-13° to 166.8 °F) / ±0.3 °C (-25 to +74.9 °C) ±0.7 °F (-40° to -13.2 °F) / ±0.4 °C (-40 to -25.1 °C) |
| Resolution | 0.1 °F / 0.1 °C |
Temperature - Type K TC
| Measuring range | -328.0° to 2498.0 °F / -200 to +1370 °C |
|---|---|
| Accuracy | ±(0.5 °F + 0.3 % of mv) / ±(0.3 °C + 0.3 % of mv) |
| Resolution | 0.1 °F / 0.1 °C |
General technical data
| Weight | 8.8 oz. / 250 g |
|---|---|
| Dimensions | 6.1 x 2.6 x 1.3 in. / 154 x 65 x 32 mm |
| Operating temperature | -4.0° to 122.0 °F / -20 to +50 °C |
| Connectable probes | 1 x digital probe with cable or 1 x Temperature NTC TUC, 1 x digital Bluetooth probe or testo Smart Probe, 1 x Temperature TC Type K |
| Product colour | black/orange |
| Battery type | 3 x AA 1.5 V |
| Battery life | 12 h (typically vane measurement) |
| Interface | Bluetooth®; USB |
| Storage temperature | -4.0° to 122.0 °F / -20 to +50 °C |
Temperature - NTC
| Measuring range | -4° to 158 °F / -20 to +70 °C |
|---|---|
| Accuracy | ±0.9 °F / ±0.5 °C |
| Resolution | 0.1 °F / 0.1 °C |
Absolute Pressure
| Measuring range | +280 to +440 InH₂O / +700 to +1100 hPa |
|---|---|
| Accuracy | ±1.2 InH₂O / ±3.0 hPa |
| Resolution | 0.1 InH₂O / 0.1 hPa |
Velocity - Hot wire anemometer
| Measuring range | 0 to 5906 fpm / 0 to 30 m/s |
|---|---|
| Accuracy | ±(98.4 fpm + 5 % of mv) / ±(0.5 m/s + 5 % of mv) (0 to 3937 fpm) / (0 to 20 m/s) ±(5.91 fpm + 4 % of mv) / ±(0.03 m/s + 4 % of mv) (3938.98 to 5906 fpm) / (20.01 to 30 m/s) |
| Resolution | 1.97 fpm / 0.01 m/s |
General technical data
| Storage temperature | -4° to 158 °F / -20 to +70 °C |
|---|---|
| Weight | 3.2 oz. / 90 g |
| Dimensions | 12.4 x 0.5 x 0.5 in. / 315 x 12 x 12 mm |
| Operating temperature | -4° to 158 °F / -20 to +70 °C |
| Cable length | 5.577 ft. |
| Length telescope | 33.465 in. / 850 mm |
| Probe head diameter | 0.354 in. / 9 mm |
| Diameter telescope | 0.472 in. / 12 mm |
| Product colour | Black; silver |
| Diameter probe shaft | 0.472 in. / 12 mm |
Comfort probes
Humidity probes
Pressure Probe
Temperature probes
Velocity Probe
Sets
Accessories
Transport Case
Convenience and maximum flexibility for duct and outlet measurements
With our large range of air velocity probes (please order separately), you can carry out simple and convenient measurements even at locations that are difficult to access in ventilation ducts or at air outlets:
you will even find it easy to carry out measurements in particularly large ducts. This is because the extendable telescope on the hot wire and vane probe (Ø 16 mm) with universal handle can be further extended using the telescope extension – enabling you to attain a total length of 2 metres.
Carry out measurements at air/ceiling outlets effortlessly and without using a ladder. Fit your vane probe (Ø 100 mm) with the telescope with 90° angle and, if necessary, with the telescope extension (both can be ordered separately).
Greater freedom thanks to Bluetooth: the air velocity probes with Bluetooth have no inconvenient cable connection to the measuring instrument, and they transmit readings up to a distance of 20 m. Press the button on the probe to operate the measuring instrument – for example, to start and stop a series of measurements (timed mean calculation).
Attach the testo 440 air velocity and IAQ measuring instrument to metal surfaces (e.g. ducts) easily using the practical magnets.
Benefit from fast calculation of the volume flow: in the “volume flow” measurement menu of the multifunction measuring instrument, configure the dimensions and geometry of the duct cross-section – the measuring instrument shows you the volume flow straight away.
you will even find it easy to carry out measurements in particularly large ducts. This is because the extendable telescope on the hot wire and vane probe (Ø 16 mm) with universal handle can be further extended using the telescope extension – enabling you to attain a total length of 2 metres.
Carry out measurements at air/ceiling outlets effortlessly and without using a ladder. Fit your vane probe (Ø 100 mm) with the telescope with 90° angle and, if necessary, with the telescope extension (both can be ordered separately).
Greater freedom thanks to Bluetooth: the air velocity probes with Bluetooth have no inconvenient cable connection to the measuring instrument, and they transmit readings up to a distance of 20 m. Press the button on the probe to operate the measuring instrument – for example, to start and stop a series of measurements (timed mean calculation).
Attach the testo 440 air velocity and IAQ measuring instrument to metal surfaces (e.g. ducts) easily using the practical magnets.
Benefit from fast calculation of the volume flow: in the “volume flow” measurement menu of the multifunction measuring instrument, configure the dimensions and geometry of the duct cross-section – the measuring instrument shows you the volume flow straight away.
Long-term monitoring of indoor air quality
Poor indoor air quality due to excessive concentrations of CO2 can cause tiredness, lack of concentration and even illness. With its menu for recording readings, the testo 440 air velocity and IAQ measuring instrument is ideal for monitoring the indoor air quality. Enter the measurement time and the measuring cycle – and, for example, track the change in CO2 concentration or humidity and temperature values over the course of the day. Simply choose between probes with Bluetooth or fixed cable for CO2, CO or humidity (please order probes separately).
Turbulence measurement in accordance with EN ISO 7730 / ASHRAE 55
Determine the degree of turbulence and the draught risk in the workplace: draught restricts the comfort level and is the most common cause of complaints about the indoor climate. The turbulence probe (please order separately) measures air velocity and air temperature, and automatically calculates the draught risk and the degree of turbulence in accordance with EN ISO 7730/ASHRAE 55.
For convenient measurements at varying heights, we recommend using our measuring tripod for comfort level measurement (please order separately). This makes it very easy to position turbulence probes in compliance with the standards.
For convenient measurements at varying heights, we recommend using our measuring tripod for comfort level measurement (please order separately). This makes it very easy to position turbulence probes in compliance with the standards.
Range of probes for cleanrooms and laboratories
The testo 440 air velocity & IAQ measuring instrument is also ideal for a wide variety of applications in cleanrooms and laboratories in conjunction with the following probes:
- High-precision flow measurement in fume cupboards with the fume cupboard probe
- Thanks to the low start-up speed of 0.1 m/s, the high-precision vane probe (Ø 100 mm) is ideal for laminar flow measurements in cleanrooms. It is available as a variant with Bluetooth or with fixed cable
- To measure the humidity in cleanrooms, we recommend the high-precision humidity/temperature probe (0636 9771 or 0636 9772). With an accuracy of ±(0.6 %RH + 0.7% of m.v.) (0 to 90 %RH), it also meets the requirements for humidity measurements in this particularly sensitive area
- Use the high-precision digital Pt100 temperature probes, for example, for high-precision comparative measurements in calibration laboratories, temperature measurements in chemical laboratories or in the cosmetics industry as well as for determining the temperature distribution in refrigerators and conditioning cabinets
- Testo 440 Data Sheet(pdf, 5.95 MB)
- Data sheet testo 440 Hot Wire Kit(pdf, 374.97 kB)
- Instruction manual testo 440(pdf, 1.63 MB)
- Firmware update testo 440(v1.0.8, 3.15 MB)see instruction manual for instructions on how to update your device